The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 10, 2002
Filed:
Dec. 26, 2000
Hans-Ulrich Huhn, Schlangenbad, DE;
Peter Spahn, Mühltal, DE;
Dietmar Wiebach, Wiesbaden, DE;
Achim Adam, Nauheim, DE;
Fritz Niegel, Oestrich-Winkel, DE;
Abstract
A composite multilayer material is described, which exhibits a relatively high specific load carrying capacity and relatively low wear. The composite multilayer material for plain bearings comprises a backing layer, a bearing metallayer ( ), a first intermediate layer ( ) of nickel, a second intermediate layer ( ) of tin and nickel together with an overlay ( ) consisting of copper and tin. The overlay ( ) comprises a tin matrix ( ), into which tin-copper particles ( ) are incorporated, which consist of 39 to 55 wt. % copper, the rest being tin. At high temperatures, as occur in the case of plain bearings used in internal combustion engines, the tin migrates into the second intermediate layer ( ) therebelow, resulting in concentration of the tin-copper particles ( ).